Improvement in speeders for drawing and twisting roving



l VT. MAYOR. Speeders for Drawing and Twstng Roving@ `|\l0.1l3f9,4'98.

Patented April 7', 1874.

UNITED STATES PATENT `OEE-ICE.

.THOMAS VMAYO-E, OE PEOvIDENoE, RHODE ISLAND, AssIoNOE OE ONE- HALF HISRIGHT T() GEORG CHATTERTON, OF SAME PLACE.

Specification formingipart of Letters Patent No. lill-9,498, dated April7, 1874;

' i January 7, 1874.

To all whom t may concern:

Be it known that I, THOMASl MAYOR, of the city and county of Providence,State of Rhode Island, have invented a new and usefulIm- -provement inSpeeders for Spinning and 'llwisting Roving, and I do hereby declarethat the following is a full, clear, and exact description thereof,which, with the accompanying drawings, forming part of thisspeciication, will enable' others'skilled in the art to make and use thesame.

\ The object of my invention is, first, to construct a Speeder-framehaving a double row of spindles and bow-fliers, so as to insure greatersteadiness than usual-when running at high speed by giving a firmersupport to the stationary brackets and spindle-tube or bolster; second,to bring .the `bevel-gear driving the bow-flier, and the bevel-geardriving the spindle, closer together than has heretofore been done, soas to support the same in one bracket, and also reduce the height of themachine, so that the operator can attend al1 parts of a Speeder-frame,without the use of raised steps, more conveniently and with lessexertion than heretofore 5 third, to secure the brackets supporting thespindle and bow-nier, and also the brackets supporting the shafting, onone central rail, thereby economizing room, and also simplifying theconstruction of the machine. 1

In the accompanying drawings, Figure I is an elevation, showing theposition of the bevel- Y gears, shafts, spindles, bow-fliers, and theirrelation to the central rail. Fig. II is a section through the rail,showing one bracket and bolster in section and one 'In side view. Fig.III shows the bolsters secured to the central rail, one in section andthe other in side view. Fig. IV shows the bearings for the four parallelshafts, and their connection with the central rail.`

To produce even and uniform roving in a speeder, with bow-iliers runningat high speed, the absolute solidity and steadiness of all parts becomeof the utmost importance. When the bolster which supports the upper partof the lspindle is secured to one part, the.

support of the lower part of the spindle and the bevel-gear by means ofwhich it is drivenappfilation iiled by another, and the shafting bywhich the gears driving the bow-iers and spindles are supported byanother part ofthe frame, high speed and uniform work are difficult toobtain, as the least vibration in one part effects the evcnness ofvelocity in the other, for if the loobbin does not run perfectly true analternate slack and tension is the result. If the bow-iiier is notperfectly true, moving steadily in its owncircle, and also in a truecircle around the bobbin, the same alternate slack and tension is theresult, and uniform work is impossible. To obviate such difficulty, andalso simplify the construction, I place in the center of my framesa'strong rail, a, having sufficient depth to give a good and firmsupport to the bolster b b, and also to the bracket dd, so that fromthis one central rail all the bearings for the spindles, bow-iiiers, andthe shafting and gearing, are lirmly supported, and true motions of allmoving parts are secured.

To bring all these bearings so as to give them this iirm support I raisethe bevelgear M Y which drives the spindle close to the shaft c, bywhich motion is imparted, through the bevel-'gears N and L, to thebow-nier, and raise the shaft E so that the gear N on the same willenter into and give motion -to the-said bevel-gear M, and for thatpurpose I place the bevel-gears N on the shafts U andE, one on each sideof the bolster. It is obvious that when the bevel-gear M is placed, asusual, below the bevel-gear N on the shaft C, a much longer bolster orbracket is required to support the bevel-gear M, and also a Inuch longerbracket to give bearing to the shaft E, and less steadiness in workingis the unavoidable result. The spindle also must be so much longer andheavier, andthe machine must be higher, and require more material in itsconstruction.

The bolster b b, as shown in Fig. III, may be cast in one piece, andsecured to the rail, as shown, or it may be made in two pieces, and onepart attached to the rail, and the other adjusted to make a truebearing, as is shown in the bolster b b in section.

'Ihe brackets d d', which support the shafting, may also be made, asshown in Fig. IV, either in one or in two parts, and firmly secured tothe central rail.

A11 advantage is gained by constructing Speeders on my plan which cannotbe gained 0n the old plan, Viz: In some eases manufacturers requirespeedenframes with a, single row of bow-iiers, and in time, byincreasing their Work, Wish to double the number. By my plan e singlerow of bow-fliers can be doubled, and made into ai double-row frame,

by simply attaching the bolsters and shafts on theother side of thecentral rail.

I claiml. The bowtlier and the spindle of a speeder for spinning-eindtwisting roving, in combinetion with and driven by two bevel-gears, N N,

.placed on opposite sides of the bolster` and be- 10W the bevel-gears Land M, substantially as and for the purpose set forth.

2. The brackets d d, carrying the four lines of shaiting, and thebrackets b b, support-ing the holsters and driving-gears for the boW-.

iiiers and spindles, combined with and secured to the single centralrail orfraime, substantially as specified.

THOMAS MAYOR.

' Witnesses:

EDWARD A. TURNER, EDWN J ERAULD.

